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arXiv · 1407.1985

Radiation emission due to fluxon scattering on inhomogeneity in large two-dimensional Josephson junction

Ivan O. Starodub·Yaroslav Zolotaryuk
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Abstract

Interaction of a fluxon in the two-dimensional large Josephson junction with the finite area inhomogeneity is studied within the sine-Gordon theory. The spectral density of the emitted plane waves is computed exactly for the rectangular and rhombic inhomogeneities. Total emitted energy as a function of the fluxon velocity exhibits at least one local maximum. Connection to the previously studied limiting cases including the point impurity and the one-dimensional limit has been performed. An important feature o f the emitted energy as a function of the fluxon velocity is a clear maximum (or maxima). The dependence of these maxima on the geometric properties of the impurity has been studied in detail.

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Ivan O. Starodub, Yaroslav Zolotaryuk. 2014-12-11. Radiation emission due to fluxon scattering on inhomogeneity in large two-dimensional Josephson junction. https://doi.org/10.1103/physrevb.90.224509

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